I have a rosbot 2 pro and I have the same problem. could you please help me with resolving the issue? following are my responses to the 5 questions:
Cloud
[INFO] [1549411365.030314]: ROS Serial Python Node
[INFO] [1549411365.048682]: Connecting to /dev/ttyCORE2 at 230400 baud
[ERROR] [1549411382.159763]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino
systemctl list-units --type service
UNIT LOAD ACTIVE SUB DESCRIPTION
accounts-daemon.service loaded active running Accounts Service
acpid.service loaded active running ACPI event daemon
alsa-restore.service loaded active exited Save/Restore Sound Card Stat
● apparmor.service loaded failed failed LSB: AppArmor initialization
apport.service loaded active exited LSB: automatic crash report
avahi-daemon.service loaded active running Avahi mDNS/DNS-SD Stack
console-setup.service loaded active exited Set console font and keymap
cpufrequtils.service loaded active exited LSB: set CPUFreq kernel para
cron.service loaded active running Regular background program p
cups-browsed.service loaded active running Make remote CUPS printers av
cups.service loaded active running CUPS Scheduler
dbus.service loaded active running D-Bus System Message Bus
getty@tty1.service loaded active running Getty on tty1
grub-common.service loaded active exited LSB: Record successful boot
hostapd.service loaded active exited LSB: Advanced IEEE 802.11 ma
husarnet-configurator.service loaded active running Husarnet Configurator
husarnet.service loaded active running Husarnet
irqbalance.service loaded active running LSB: daemon to balance inter
keyboard-setup.service loaded active exited Set console keymap
kmod-static-nodes.service loaded active exited Create list of required stat
lightdm.service loaded active running Light Display Manager
loadcpufreq.service loaded active exited LSB: Load kernel modules nee
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I have same issue about Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino in ROSBOT 2.0 PRO version.
Is your code include baud rate equal to 230400? If you are not sure about that, you can flash your ROSbot using “ROSbot default firmware” template from our IDE with one additional line: